public class FinalizeEscapeGC {
    public static FinalizeEscapeGC SAVE_HOOK = null;
    public void isAlive() {
        System.out.println("yes, I am still alive :)");

    }
    @Override
    protected void finalize() throws Throwable {
        super.finalize();
        System.out.println("finalize method executed!");
        FinalizeEscapeGC.SAVE_HOOK = this;
    }

    public static void main(String[] args) throws Throwable {
        SAVE_HOOK = new FinalizeEscapeGC();
        SAVE_HOOK = null;
        System.gc();
        Thread.sleep(500);
        if(SAVE_HOOK != null)
            SAVE_HOOK.isAlive();
        else
            System.out.println("no, I am dead :(");
        SAVE_HOOK = null;
        System.gc();
        Thread.sleep(500);
        if(SAVE_HOOK != null)
            SAVE_HOOK.isAlive();
        else
            System.out.println("no, I am dead :(");
    }
}
